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- expand oam from 544 to 1024 bytes, to include flexible sprite sizes and a larger pool of pattern tables.
- add another bank of vram for rotating/scaling sprites.
- use packed pixel format instead of planar.
- add a 320x224 mode.
- fix the 5a22's bus timing so it can run faster on slower memory.
- use a better math coprocessor that can do 16bit signed multiply and division.
cost cutting changes:
- get rid of mosiac and window effects.
- remove highres modes and 8bpp modes.
- reduce the amount of wram to 64kb or 32kb.
- replace the spc700 with the cheaper Ricoh PCM chip.
Topic starter
Posted : 11/05/2014 1:39 am